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Documentation: PCI: Fix typos in msi-howto.rst

Fix subject-verb agreement for "has a requirements" as well as
"neither...or" conjunction mistake. And convert "Message Signalled
Interrupts" to "Message Signaled Interrupts" to match the PCIe spec.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://patch.msgid.link/1766713528-173281-1-git-send-email-shawn.lin@rock-chips.com

authored by

Shawn Lin and committed by
Bjorn Helgaas 560cb3bd 8f0b4cce

+3 -3
+3 -3
Documentation/PCI/msi-howto.rst
··· 98 98 99 99 which allocates up to max_vecs interrupt vectors for a PCI device. It 100 100 returns the number of vectors allocated or a negative error. If the device 101 - has a requirements for a minimum number of vectors the driver can pass a 101 + has a requirement for a minimum number of vectors the driver can pass a 102 102 min_vecs argument set to this limit, and the PCI core will return -ENOSPC 103 103 if it can't meet the minimum number of vectors. 104 104 ··· 127 127 some platforms, MSI interrupts must all be targeted at the same set of CPUs 128 128 whereas MSI-X interrupts can all be targeted at different CPUs. 129 129 130 - If a device supports neither MSI-X or MSI it will fall back to a single 130 + If a device supports neither MSI-X nor MSI it will fall back to a single 131 131 legacy IRQ vector. 132 132 133 133 The typical usage of MSI or MSI-X interrupts is to allocate as many vectors ··· 203 203 ---------------------------------------------------- 204 204 205 205 Using 'lspci -v' (as root) may show some devices with "MSI", "Message 206 - Signalled Interrupts" or "MSI-X" capabilities. Each of these capabilities 206 + Signaled Interrupts" or "MSI-X" capabilities. Each of these capabilities 207 207 has an 'Enable' flag which is followed with either "+" (enabled) 208 208 or "-" (disabled). 209 209